Loose-leaf book.



L. D. HAMAGHER. LOOSE LEAF BOOK.

APPLIOATION FILED SEPT.15. 1909.

1,020,948, Patented Mar. 19, 1912.

COLUMBIA PLANOGRAPM coqwAsmNu'rofl, n. c.

UNITED STATES PATENT OFFICE.

LEE D. HAMACHER, OF KANSAS CITY, MISSOURI, ASSIGNOR TO HAMACHER-HAWKINS MANUFACTURING COMPANY, A CORPORATION OF MISSOURI.

LOOSE-LEAF BOOK.

To all whom it may concern:

Be it known that 1, LEE D. HAMACHER, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Loose-Leaf Books, of which the following is a specification.

My invention relates to improvements in loose-leaf books, and one important feature of the invention resides in the novel means for holding the hookcarrying members of the book in an open or a closed position.

Another feature of the invention resides in the novel manner in which the hooks of the book are secured to the hook-carrying members.

Referring to theaccompanying drawing which illustrates the invention: Figure 1 represents a broken end View of my 1mproved book. Fig. 2 is an enlarged cross section on line IIII of Fig. 4. Fig. 3 1s a perspective view of the metal parts of the book ready to be assembled. Fig. 4 1s a plan View of the book with the cover removed. Fig. 5 is a broken detail of one of the hookcarrying members. Fig. 6 is an edge view of one of the hooks.

In carrying out the invention I employ a frame 1, provided with longitudinal, 1nturned,marginal flanges 2 forming grooves 3.

1 designates a pair of hook-carrying members rockingly mounted in the grooved portions of the frame, and provided at their reinforced ribbed. portions 4: with a plurality of hooks -5 which are substantially secured to the hook-carrying members without the use of solder. The lower end 6 of each hook is swaged, as shown in Fig. 6, to form a shoulder 7 The swaged end of the hook is passed through an aperture 8 provided therefor in its respective hookcarrying member, until shoulder 7 contacts with the upper surface of said member. The lower terminal of the hook is then upset to form a head 9 which clenches the underside of the hook-carrying member and draws the shoulder reliably into engagement with the upper side of said member so that the hook will be reliably secured thereto.

When opening and closing the hooks, they Specification of Letters Patent.

Application filed September 15, 1909.

Patented Mar. 19, 1912.

Serial No. 517,822.

are caused to operate in unison and held in the open or closed position, by a plurality of U-shaped members 10, the upper portions 11 of which overlap the adjacent portions of the hook-carrying members, while their lower terminals 12 underlap said hook-carrying members, thus when the hooks are opened the underlapping ends 12 will be brought into engagement with the underside of the hook-carrying members, and thereby limit the opening movement of the hooks. Members 10 are prevented from shifting longitudinally by their downturned portions 13 engaging the sides of a plurality of notches let extending inwardly from the adjacent edges of the hook-carrying members. Members 10 are rendered resilient by longitudinal slots 15, so that they will reliably hold the hook-carrying members seated in the grooved portions 3 of the frame, and also reliably hold the hooks in an open or aclosed position.

16 designates a cover which is secured to the rear side of frame 1.

In practice when it is desired to insert or remove loose-leaves 17, the hooks 5 are grasped near their upper ends and drawn apart. This operation causes the hook-carrying members to rock upwardly until the underlapping ends 12 of the U-shaped members 10 engage said hook-carrying members, and thereby check further opening of the hooks. The closing movement of the hooks is limited by the ends thereof contacting with each other, as shown in Fig. 2.

Then desired slots 15 may be omitted from members 10 when the latter are to be employed merely to limit the opening of the hooks and to cause the hook-carrying members to operate in unison, and when members 10 are so employed any of the wellknown springs may be added to the book to obtain the requisite pressure for reliably holding the hooks open or closed.

Having thus described my invention, what I claim is 1. In a device of the character described, a frame, hook-carrying members rockingly mounted therein and provided with inwardly-extending notches at their adjacent edges, and a plurality of slotted U-shaped members extending through the notches and overlapping and underlapping the hooknotches and overlapping and underlapping carrying members. the hook-carrying members. 10

2. In a device of the character described, In testimony whereof I affix my signature,

a frame, a cover to which said frame is sein the presence of two witnesses.

cured, hookcarrying members operably- LEE D. HAMACHER.

mounted in the frame and provided with Witnesses:

notches at their adjacent edges, and a slotted 'F. G. FISCHER,

resilient member extending through the M. COX.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

